Leinster will be looking to set up an all-Irish semi final at the Aviva Stadium later this month, after Munster made it to the last four with a win over Toulouse yesterday.
Leinster couldn't have it any tougher this afternoon, however, if they are to make the semi final.
They face reigning Heineken Cup champions Toulon on their own patch.
Leinster head coach Matt O'Connor says his side are all set for the tough game that lies ahead.
Kick off in Toulon is at 4.30pm Irish time.
Munster awaits the winners of today's game following their thrilling win over Toulouse.
Rob Penney's side beat the four time winners on a scoreline of 47 points to 23 at Thomond Park yesterday.
Former Munster and Ireland scrum-half Tom Tierney says Munster will provide tough opposition no matter who they meet in the last four.
